How to solve the unsolvable using only half an onion

I know it’s blokes who are supposed to be unable to see the pint of milk on the second shelf of the fridge (it’s because they have the eye on the big picture, isn’t it – checking out the lion on the horizon the while we women worry about grubs and corn on the ground?). Let's be honest, it’s not just blokes. I made myself a stir fry yesterday and I knew I had half an onion. I was pretty sure it was in the fridge and certain I hadn’t [...]